# Flow vs IsonAI

The clearest difference is update cadence: Flow at every 4 days against IsonAI's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Flow ships an update every 4 days, IsonAI fortnightly. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Flow | IsonAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 7 MB | 4 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [LE TRI THUC](https://appshunter.io/developer/1889002929) | [Dimas Wibisono](https://appshunter.io/developer/1892365235) |

## What reviewers say

### Flow

[App page](https://appshunter.io/ios/app/flow-activities-and-notes/id6761343530)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### IsonAI

[App page](https://appshunter.io/ios/app/isonai/id6761997078)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Flow free?

Flow is free to download, with no in-app purchases.

### Is IsonAI free?

IsonAI is free to download, with no in-app purchases.

### Do Flow or IsonAI have ads?

Neither Flow nor IsonAI shows ads.

### Which is updated more often, Flow or IsonAI?

Flow ships an update every 4 days, and IsonAI fortnightly. Most recently, Flow was updated on October 2, 2026 and IsonAI on October 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*